Strain relief of earphone



FIG. 1 is a perspective view of a strain-relief earphone showing my new design, the cord is drawn broken away for indeterminate length;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof; and,

FIG. 5 is a right side view thereof.

The broken lines form no part of the claimed design. 

I claim the ornamental design for a strain-relief of earphone, as shown and described. 